Debris Bin Assembly, Cleaning Robot and Cleaning Robot System

ABSTRACT

The disclosure provides a debris bin assembly, a cleaning robot and a cleaning robot system, the debris bin assembly includes a debris bin housing, a filter assembly, and a flow guide plate, the debris bin housing includes a top portion and a bottom portion disposed opposite to the top portion, and a side housing surrounding the top portion and the bottom portion, the top portion, the bottom portion and the side housing are enclosed to form an inner cavity, the top portion of the debris bin housing is provided with an air exhaust channel communicating with the inner cavity and an air outlet communicating with the air exhaust channel, the side housing is provided with an air inlet communicating with the inner cavity, the air inlet inclines towards a side where the top portion is located, the filter assembly is disposed in the air exhaust channel of the top portion, the flow guide plate is located in the inner cavity and is disposed opposite to the air inlet, the flow guide plate extends from the top portion to the bottom portion and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet, so as to decelerate and laterally guide air flow carrying debris, which avoids debris directly impacting a filter screen at a high speed and attaching to it, and consequently, a problem that the filter screen is easily blocked is solved.

CROSS-REFERENCE TO RELATED APPLICATION

The present disclosure claims the priority to Chinese Patent Application No. 202111162181.4, filed to the Chinese Patent Office on Sep. 30, 2021 and entitled “Debris Bin Assembly, Cleaning Robot and Cleaning Robot System”, which is incorporated in its entirety herein by reference.

TECHNICAL FIELD

The disclosure relates to a field of cleaning robots, in particular to a debris bin assembly, a cleaning robot and a cleaning robot system.

BACKGROUND

While a cleaning robot (such as a sweeping robot) automatically moves on a floor, sundries such as debris and the like on the floor are sucked into a debris bin of the robot through an air duct to clean an area where it walks. Robots are well developed and widely used for their convenience.

Usually, a filter screen is disposed at a joint of the debris bin and the air duct, which plays a filtering role to prevent debris from entering the air duct. However, debris flowing at a high speed with air flow easily impacts the filter screen and attach to it. With an increase of use time, the filter screen is easily blocked, resulting in the cleaning robot can not work properly.

SUMMARY

Embodiments of the disclosure provide a debris bin assembly, a cleaning robot and a cleaning robot system, for solving a technical problem that debris flowing at a high speed with air flow easily impact a filter screen and attach to it, and the filter screen is easily blocked.

The embodiments of the disclosure provide a debris bin assembly, applied to a cleaning robot. The debris bin assembly includes a debris bin housing, a filter assembly, and a flow guide plate, the debris bin housing includes a top portion, a bottom portion disposed opposite to the top portion, and a side housing surrounding the top portion and the bottom portion, the top portion, the bottom portion and the side housing are enclosed to form an inner cavity, the top portion of the debris bin housing is provided with an air exhaust channel communicating with the inner cavity and an air outlet communicating with the air exhaust channel, the side housing is provided with an air inlet communicating with the inner cavity, the air inlet inclines towards a side where the top portion is located, the filter assembly is disposed in the air exhaust channel of the top portion, the flow guide plate is located in the inner cavity and is disposed opposite to the air inlet, and flow guide plate extends from the top portion to the bottom portion and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet.

The embodiments of the disclosure further provide a cleaning robot, which includes a robot body and the debris bin assembly described above, and the debris bin assembly is detachably mounted on the robot body.

The embodiments of the disclosure further provide a cleaning robot system, which includes the cleaning robot described above, and a cleaning base station, the cleaning base station is configured for performing at least one maintenance on the cleaning robot, and the at least one maintenance includes recycling garbage in the debris bin assembly.

Different from a prior art, for the debris bin assembly, the and the cleaning robot system, the top portion is provided with the air exhaust channel communicating with the inner cavity and the air outlet communicating with the air exhaust channel, the side housing is provided with the air inlet communicating with the inner cavity, the air inlet inclines towards the side where the top portion is located, the filter assembly is disposed in the air exhaust channel of the top portion, the flow guide plate is located in the inner cavity and disposed opposite to the air inlet, the flow guide plate extends from the top portion to the bottom portion and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet, so that air flow carrying debris is decelerated and laterally guided, which avoids debris directly impacting a filter screen at a high speed and attaching to it, and consequently, the problem that the filter screen is easily blocked is solved.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are illustrated by figures in the corresponding drawings, which are not intended to limit the embodiments, in which elements having the same reference numerals represent similar elements, and the figures of the drawings are not intended to be limiting of scale unless specifically stated otherwise.

FIG. 1 is a schematic structure diagram of a longitudinal cross-sectional view of a cleaning robot provided by an embodiment of the disclosure.

FIG. 2 is a schematic structure diagram of a stereo view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 3 is a schematic structure diagram I of a cross-sectional view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 4 is a schematic structure diagram II of a cross-sectional view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 5 is a schematic structure diagram I of a top view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 6 is a schematic structure diagram II of a top view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 7 is a schematic structure diagram III of a cross-sectional view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 8 is a partially enlarged schematic diagram of the cross-sectional view of the debris bin assembly provided by FIG. 3 .

FIG. 9 is a schematic structure diagram IV of a transverse cross-sectional view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 10 is a schematic structure diagram V of a transverse cross-sectional view of a debris bin assembly provided by an embodiment of the disclosure.

FIG. 11 is a cooperation schematic diagram of a cleaning robot system provided by an embodiment of the disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to make the purpose, technical solutions and advantages of the disclosure clearer, the disclosure will be further described below in combination with the drawings and embodiments. It is to be understood that the specific embodiments described herein are for the purpose of explaining the disclosure only and are not intended to limit the disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the disclosure without creative efforts shall fall within the protection scope of the disclosure.

It is to be noted that the features in the embodiments of the present disclosure may be combined with each other without conflict, within the scope of protection of the disclosure. In addition, although functional module divisions are shown in apparatus schematics and a logical order is shown in flowcharts, in some cases, the steps shown or described may be performed in a different order than the module divisions in the apparatus or flowcharts. Furthermore, the terms “first,” “second,” and “third,” as used herein, are not intended to limit data and execution order, but merely distinguish the same or similar items having substantially the same function or effect.

Referring to FIGS. 1-4 , embodiments of the disclosure provide a cleaning robot 100. The cleaning robot 100 includes a robot body 10 and a debris bin assembly 20 detachably connected to the robot body 10.

The debris bin assembly 20 includes a debris bin housing 21, a filter assembly 22, and a flow guide plate 23. The debris bin housing 21 includes a top portion 211, a bottom portion 212 disposed opposite to the top portion 211, and a side housing 213 surrounding the top portion 211 and the bottom portion 212, and the top portion 211, the bottom portion 212 and the side housing 213 are enclosed to form an inner cavity 214.The top portion 211 of the debris bin assembly 20 is provided with an air exhaust channel 215 communicating with the inner cavity 214 and an air outlet 216 communicating with the air exhaust channel 215, the side housing 213 is provided with an air inlet 217 communicating with the inner cavity 214, the air inlet 217 inclines towards a side where the top portion 211 is located, the filter assembly 22 is disposed in the air exhaust channel 215 of the top portion 211, the flow guide plate 23 is located in the inner cavity 214 and is disposed opposite to the air inlet 217, and the flow guide plate 23 extends from the top portion 211 to the bottom portion 212 and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet 217.

Different from a prior art, the top portion 211 is provided with the air exhaust channel 215 communicating with the inner cavity 214 and the air outlet 216 communicating with the air exhaust channel 215, the side housing 213 is provided with the air inlet 217 communicating with the inner cavity 214, the air inlet 217 inclines towards the side where the top 211 is located, the filter assembly 22 is disposed in the air exhaust channel 215 of the top portion 211, the flow guide plate 23 is located in the inner cavity 214 and disposed opposite to the air inlet 217, the flow guide plate 23 extends from the top portion 211 to the bottom portion 212 and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet 217, so that air flow carrying debris is decelerated and laterally guided, which avoids debris directly impacting the filter screen at a high speed and attaching to it, and consequently, the problem that the filter screen is easily blocked is solved

It can be understood that the cleaning robot 100 can be any one of a sweeping robot, a sweeping and mopping integrated robot, a floor wiping robot, a floor washing robot and the like. Of course, the cleaning robot 100 is not limited to the above examples.

In the embodiment, the cleaning robot 100 is the sweeping and mopping integrated robot. The robot body 10 is a main part of the cleaning robot 100, and robot body 10 can be of any shape, such as a circle, a rectangle or a D-shape, which is not limited herein. In an optional embodiment, the robot body 10 can also have other design structures, for example, the robot body 10 is of an integrated structure or a left-right separated structure, and a material, a shape, a structure and the like of the body are not limited in the embodiment of the disclosure.

The robot body 10 includes a chassis 11 and an upper cover assembly 12, the upper cover assembly 12 is detachably mounted on the chassis 11 to protect various functional components inside the cleaning robot 100 from being damaged by violent impact or unintentional dripping liquid during use. The chassis 11 and/or the upper cover assembly 12 are/is configured to carry and support the various functional components. A surface, away from the chassis 11, of the upper cover assembly 12 forms an appearance surface, which promotes an overall appearance of the cleaning robot 100. Keys are disposed on the appearance surface, which is convenient for a user to operate the cleaning robot 100 through the keys. A mounting cavity is formed between the chassis 11 and the upper cover assembly 12, and the mounting cavity is configured to provide an arrangement space for internal devices of the cleaning robot 100. For the cleaning robot 100, a vacuum pump, a circuit board, a ground detection sensor, a collision detection sensor, a wall sensor and the like are arranged in the mounting cavity.

The cleaning robot 100 includes a traveling mechanism 13 mounted on the chassis 11, the traveling mechanism 13 includes two traveling wheels, at least one universal wheel, and a motor for driving the wheels to rotate, at least part of the two traveling wheels and at least part of the at least one universal wheel protrude out of the bottom portion 212 of the chassis 11, for example, under an action of self-weight of the cleaning robot 100, a part of the two traveling wheels are hidden in the chassis 11. In an optional embodiment, the traveling mechanism 13 also includes any one of a triangular crawler wheel, a Mecanum wheel and the like. The traveling mechanism 13 may also not include the at least one universal wheel.

The cleaning robot 100 includes at least one middle sweeping brush 14, the at least one middle sweeping brush 14 is disposed in an accommodating groove formed at the bottom portion of the chassis 11, a debris suction opening is formed in the accommodating groove and the debris suction opening communicates with the debris bin assembly 20 and a debris suction fan, so that the middle sweeping brush 14 stirs up debris and garbage on the ground when rotating, and the debris suction fan generates suction force to suck the debris and garbage into the debris bin assembly 20 from the debris suction opening.

The cleaning robot 100 can be designed to plan a path on the ground autonomously, and can also be designed to move on the ground in response to a remote control instruction. The cleaning robot 100 is navigated by one or a combination of several of a gyroscope, an accelerometer, a camera, GPS positioning and/or a laser radar, for example, the cleaning robot 100 is provided with the laser radar in a protruding manner on a top surface, the laser radar scans a surrounding environment is scanned to collect obstacle data, an environment map is built according to the obstacle data, and real-time positioning is carried out according to the environment map, which facilitates a planning of a cleaning path.

In the embodiment, the debris bin assembly 20 is detachably mounted on the robot body 10. The debris bin assembly 20 can be assembled with the robot body 10 in various ways. For example, in some embodiments, the chassis 11 of the robot body 10 is provided with a mounting groove at a periphery, the debris bin housing 21 of the debris bin assembly 20 is detachably mounted in the mounting groove, the debris bin housing 21 is separately mounted in the mounting groove of the chassis 11, or, the debris bin housing 21 is assembled with a water tank into a whole which is then mounted in the mounting groove of the chassis 11. Or, in another embodiment, the upper cover assembly 12 of the robot body 10 is provided with a mounting groove, the debris bin housing 21 of the debris bin assembly 20 is detachably mounted in the mounting groove, the debris bin housing 21 is separately mounted in the mounting groove of the upper cover assembly 12, or, the debris bin housing 21 is assembled with a water tank into a whole which is then mounted in the mounting groove of the upper cover assembly 12.

The air inlet 217 of the debris bin housing 21 communicates with the debris suction opening of the chassis 11. The debris bin housing 21 is further provided with the air outlet 216 communicating with the inner cavity 214, and the debris bin housing 21 communicates with the debris suction fan through the air outlet 216. Under a vacuum suction effect of the debris suction fan, a vacuum negative pressure is generated in the debris bin housing 21, so that debris and garbage are sucked into the debris bin housing 21 from the debris suction opening and the air inlet 217.

The top portion 211 is a top structural part of the debris bin housing 21, and the bottom portion 212 is a bottom structural part of the debris bin housing 21. A distance is provided between the top portion 211 and the bottom portion 212. The side housing 213 encloses a periphery of the top portion 211 and the bottom portion 212, so that the side housing 213, the top portion 211 and the bottom portion 212 are enclosed to form the inner cavity 214.

The air exhaust channel 215 is disposed in the top air exhaust channel 211 of the debris bin housing 21. The air exhaust channel 215 and the inner cavity 214 are arranged in sequence in a height direction of the debris bin housing 21, wherein an opposite direction of the top portion 211 and the bottom portion 212 is the height direction of the debris bin housing 21.

The top portion 211 includes a top housing body 31 and a movable cover plate 32, and the top housing body 31 covers a side, away from the bottom portion 212, of the side housing 213. An upper surface 46, away from the inner cavity 214, of the top housing body 31 is provided with a groove 33, and the movable cover plate 32 is rotatably connected with the top housing body 31 to cover or open the groove 33. The groove 33 forms a part of the air exhaust channel 215. The filter assembly 22 is detachably mounted in the groove 33, and the filter assembly 22 is disassembled and replaced by opening the movable cover plate 32. A bottom of the groove 33 is provided with a hollow structure, so that the air exhaust channel 215 pneumatically communicates with the inner cavity 214 through the hollow structure, and the filter assembly 22 covers the hollow structure to filter debris.

The filter assembly 22 is disposed in the air exhaust channel 215 of the top portion 211, and the filter assembly 22 filters debris in the air flow, so as to intercept the debris in the inner cavity 214 of the debris bin housing 21. The filter assembly 22 includes Hepa, sponge or other type of filter media.

The flow guide plate 23 is located in the inner cavity 214 and is disposed opposite to the air inlet 217, and the flow guide plate 23 extends from the top portion 211 to the bottom portion 212 and the flow guide plate 23 is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet 217. The flow guide plate 23 can be connected with the top portion 211 in various ways, for example, in an embodiment, the flow guide plate 23 and the top housing body 31 are integrally formed by injection molding; or, in another embodiment, the flow guide plate 23 is detachably connected with the top housing body 3lthrough a buckle structure, a screw connection or plug-in structure, and the like, a specific connection way is not limited here, and can be set by a person skilled in the art according to actual needs.

Referring to FIGS. 3 and 4 , a side, close to the bottom portion 212, of the top portion 211 forms an air inlet side 34 of the air exhaust channel 215 (the side, close to the bottom portion 212, of the top portion 211 is provided with the hollow structure to allow air to enter), the flow guide plate 23 is disposed on a surface of the air inlet side 34 in a protruding manner, and the flow guide plate 23 laterally guides air flow entering from the air inlet 217, so that the air flow flushes the surface of the air inlet side 34 along a preset direction, wherein the air flow entering from the air inlet 217 directly impacts the flow guide plate 23 to change a direction of the air flow, on one hand, a deceleration effect is achieved on the air flow carrying debris, thereby avoiding the air flow carrying debris directly impacts the filter assembly 22 at a high speed; on the other hand, the flow guide plate 23 intercepts the air flow entering from the air inlet 217 and changes the direction of the air flow, the air flow flushes the surface of the air inlet side 34 along the flow guide plate 23, so as to flush away debris attached to the surface of the air inlet side 34, which generates a cleaning effect on the air inlet side 34 and the filter assembly 22, and thus debris adhesion or blockage are avoided.

A shape of the flow guide plate 23 can be various, for example, the flow guide plate 23 can be any one of linear, V-shaped, arc-shaped or special-shaped, and a person skilled in the art can set the shape of the flow guide plate 23 according to actual needs.

Referring to FIG. 3 , FIG. 4 , FIG. 5 and FIG. 7 , furthermore, an area where the air inlet side 34 is located is provided with a first edge 341 and two opposite second edges 342, the first edge 341 is a side edge, close to the air inlet 217, of the area where the air inlet side 34 is located, the two second edges 342 are connected with the first edge 341, and at least part of the flow guide plate 23 spans between the two second edges 342.

In the embodiment, the area where the air inlet side 34 is located is rectangular, the two second edges 342 are respectively connected with two ends of the first edge 341, that is, the two second edges 342 are approximately located on left and right sides of the area where the air inlet side 34 is located, and the two second edges 342 are approximately perpendicular to the first edge 341. In other embodiments, the area where the air inlet side 34 is located can also be of other shapes, such as oval, trapezoid, parallelogram or special shape, which is not limited herein.

At least part of the flow guide plate 23 spans between the two second edges 342, so that the flow guide plate 23 spans the left and right sides of the area where the air inlet side 34 is located, and thus the flow guide plate 23 has a large enough interception area to intercept, decelerate and guide the air flow entering from the air inlet 217.

Referring to FIG. 3 , FIG. 4 and FIG. 5 , in some embodiments, a length of the flow guide plate 23 is larger than a distance between the two second edges 342, the flow guide plate 23 is disposed crosswise to the two second edges 342, that is, two ends of the flow guide plate 23 are respectively disposed beyond the two second edges, and the flow guide plate 23 is configured for guiding the air flow carrying debris to an outside of the area where the air inlet side 34 is located, which is beneficial to reduce an accumulation of debris at the air inlet side 34, thereby reducing the blockage of the filter screen.

Referring to FIG. 3 , FIG. 4 , FIG. 5 and FIG. 7 , in some embodiments, the flow guide plate 23 includes a first side plate 231 and a second side plate 232, the first side plate 231 and the second side plate 232 are connected to form a V-shaped plate structure, a junction of the first side plate 231 and the second side plate 232 is disposed close to the first edge 341, the first side plate 231 is disposed crosswise to one of the two second edges 342, and the second side plate 232 is disposed crosswise to the other of the two second edges 342. The first side plate 231 is of a straight plate shape, and the second side plate 232 is of a straight plate shape. In other embodiments, the first side plate 231 can also be of an arc or other shape, and the second side plate 232 can also be of an arc or other shape, which is not limited herein.

The first side plate 231 and the second side plate 232 form a V-shaped plate structure, the junction of the first side plate 231 and the second side plate 232 forms a diversion part 233, which is configured to divert the air flow entering from the air inlet 217, so that the air flow flows along the first side plate 231 and the second side plate 232 respectively, therefore, the air flow entering from the air inlet 217 is dispersed into two air flows in different directions, the two air flows flow along the first side plate 231 and the second side plate 232 respectively, thereby promoting the air flow entering from the air inlet 217 to be converted into a plurality of lateral air flows, an impact direction of the air flow carrying debris is effectively dispersed, which avoids the air flow carrying debris directly impacting a same position of the filter assembly 22 at a high speed, and thereby avoiding the blockage of the filter screen. In addition, the first side plate 231 and the second side plate 232 guide the air flow to the left and right sides of the area where the air inlet side 34 is located, so that the left and right sides of the air inlet side 34 and left and right sides of the filter assembly 22 are thoroughly flushed in a transverse direction, and an cleaning effect of the air inlet side 34 and the filter assembly 22 is improved.

Referring to FIG. 3 , FIG. 4 , FIG. 5 and FIG. 7 , in some embodiments, the flow guide plate 23 includes the first side plate 231 and the second side plate 232 connected with the first side plate 231, the junction of the first side plate 231 and the second side plate 232 is provided with the diversion part 233 which protrudes toward a direction of the air inlet 217, the diversion part 233 is configured to divert the air flow entering from the air inlet 217, so that the air flow flows along the first side plate 231 and the second side plate 232, respectively, an beneficial effect of such design can refer to the above description, and will not be repeated herein. The diversion part 233 is formed by a convex corner at the junction of the first side plate 231 and the second side plate 232. In other embodiments, the diversion part 233 can also be a diversion rib or a diversion partition plate disposed at the junction of the first side plate 231 and the second side plate 232.

Referring to FIG. 6 , in some other embodiments, the flow guide plate 23 includes an inclined flow guide plate 234, and at least part of the inclined flow guide plate 234 spans between the two second edges 342, and the inclined flow guide plate 234 is inclined relative to the first edge 341. At least part of the inclined flow guide plate 234 spans between the two second edges 342, so that the inclined flow guide plate 234 spans the left and right sides of the area where the air inlet side 34 is located. The inclined flow guide plate 234 is inclined relative to the first edge 341, so that the inclined flow guide plate 234 plays a role of inclined flow guide.

Referring to FIG. 5 , FIG. 7 , and FIG. 8 , furthermore, the side housing 213 is provided with a debris evacuation structure 218 opposite to the air inlet 217, and the air inlet 217, the diversion part 233 and the debris evacuation structure 218 are sequentially arranged in a middle position of the debris bin assembly 20 along a front-rear direction of the debris bin assembly 20.

In the embodiment, the debris evacuation structure 218 includes a debris discharging opening 2181 and a debris discharging valve 2182 disposed at the debris discharging opening 2181. The debris discharging opening 2181 penetrates through the side housing 213. The debris discharging valve 2182 is configured to cover or open the debris discharging opening 2181, and the debris discharging valve 2182 opens the debris discharging opening 2181 in response to external vacuum negative pressure, so that garbage in the debris bin housing 21 is discharged through the debris discharging opening 2181; and the debris discharging valve 2182 covers the debris discharging opening 2181 after the external vacuum negative pressure is withdrawn.

The air inlet 217, the diversion part 233 and the debris evacuation structure 218 are sequentially arranged at the middle position of the debris bin assembly 20 along the front-rear direction of the debris bin assembly 20, so that the air flow entering from the air inlet 217 preferentially impact the diversion part 233 to form a plurality of diverted flows which flow to left and right sides of the inner cavity 214, and then garbage in the left and right sides of the inner cavity 214 can be driven to flow to the debris evacuation structure 218, thus avoiding that residual garbage in the left and right sides of the debris bin housing 21 is not completely discharged, and improving a debris discharge efficiency.

In other embodiments, the debris evacuation structure 218 is disposed at the bottom portion 212 of the debris bin housing 21.

Referring to FIG. 5 and FIG. 7 , furthermore, a center line of the air inlet 217, a center line of the diversion part 233 and a center line of the debris evacuation structure 218 are located in a same preset plane, the first side plate 231 is disposed at a first included angle with the respect to preset plane, and the second side plate 232 is disposed at a second included angle with respect to the preset plane, wherein the first included angle is equal to the second included angle. The first included angle is equal to the second included angle, so that the first side plate 231 and the second side plate 232 forms a symmetrical V-shaped structure. Of course, in other embodiments, the first included angle can also be not equal to the second included angle

Referring to FIG. 5 and FIG. 7 , furthermore, the bottom portion 212 is provided with two opposite edge areas 41 and a middle area 42 between the two edge areas 41, the air inlet 217 of the side housing 213 is disposed corresponding to the middle area 42, the first side plate 231 and the second side plate 232 are respectively configured to divert the air flow entering from the air inlet 217 to the two edge areas 41, so that garbage at the two edge areas 41 is driven to flow to the middle area 42, and then be discharged from the debris evacuation structure 218 under an action of vacuum suction at the debris evacuation structure 218.

Referring to FIG. 5 and FIG. 7 , in some embodiments, the side housing 213 is provided with a first side wall 43 and a second side wall 44 disposed opposite to the first side wall 43, and two opposite guide side walls 45, the air inlet 217 is disposed on the first side wall 43, the debris evacuation structure 218 is disposed on the second side wall 44, the two guide side walls 45 are connected between the first side wall 43 and the second side wall 44, respectively, the two guide side walls 45 are constructed to guide air flow to the debris evacuation structure 218, the first side plate 231 and the second side plate 232 are connected with the two guide side walls 45, respectively. In the embodiment, the two guide side walls 45 are respectively recessed toward the left and right sides of the debris bin assembly 20 to form the two edge areas 41, so that the debris bin housing 21 has a larger volume to contain debris.

The two guide side walls 45 are approximately concave curved surfaces, and a distance between the two guide side walls 45 is narrowed approaching the debris evacuation structure 218. The two guide side walls 45 are located on opposite sides of the debris evacuation structure 218, respectively, and guide the air flow guided by the first side plate 231 and the second side plate 232 to the debris evacuation structure 218 in a concentrated manner, so as to drive the garbage in the two edge areas 41 to be guided to the debris evacuation structure 218 in a concentrated manner, thereby improving the debris discharge efficiency.

Referring to FIG. 8 and FIG. 9 , furthermore, a side, close to the top portion 211, of the bottom portion 212 is provided with an upper surface 46, the upper surface 46 is connected between the debris evacuation structure 218 and the air inlet 217, the upper surface 46 is recessed away from the top portion 211 to form a recessed space 47, and the recessed space 47 forms a part of the inner cavity 214. The recessed space 47 is configured for conveniently collecting debris.

Referring to FIG. 8 and FIG. 9 , in some embodiments, a portion, close to the debris evacuation structure 218, of the upper surface 46 is arched toward the top portion 211, and a portion, close to the air inlet 217, of the upper surface 46 is arched toward the top portion 211. The portion, close to the air inlet 217, of the upper surface 46 is arched toward the top portion 211, that is, the portion, close to the air inlet 217, of the upper surface 46 forms a first slope 48, so debris entering from the air inlet 217 enter the concave space 47 along the first slope 48, which avoids staying of debris. The portion, close to the debris evacuation structure 218, of the upper surface 46 is arched toward the top portion 211, that is, the portion, close to the debris evacuation structure 218, of the upper surface 46 forms a second slope 49, when the vacuum negative pressure suction at the debris evacuation structure 218 is withdrawn, debris close to the debris discharging opening automatically fall into the recessed space 47 along the second slope 49, which prevents the debris from staying at the debris discharging opening to cause garbage leakage. Define a bottom surface of the debris bin housing as a horizontal plane, and an inclination angle of the first slope 48 relative to the horizontal plane is larger than an inclination angle of the second slope 49 relative to the horizontal plane, so that it is convenient to guide the debris in the recessed space 47 out of the debris evacuation structure 218.

Referring to FIG. 10 , furthermore, the flow guide plate 23 divides the area where the air inlet side 34 is located into a first area 51 and a second area 52, the first area 51 is located on a side, close to the air inlet 217, of the flow guide plate 23, the second area 52 is located on a side, away from the air inlet 217, of the flow guide plate 23, when the air outlet 216 is subjected to a suction negative pressure, at least part of the air flow entering from the air inlet 217 enters the air exhaust channel 215 through the first area 51, and at least part of the air flow entering from the air inlet 217 bypasses the flow guide plate 23 and enters the air exhaust channel 215 through the second area 52. After the air flow entering from the air inlet 217 impacts the flow guide plate 23, the flow guide plate 23 intercepts, decelerates and laterally guides the air flow entering from the air inlet 217, debris with large mass in the air flow carrying debris impact the flow guide plate 23, and then are separated from the air flow and fall to the bottom portion 212 of the debris bin housing 21, and the air flow with reduced debris content is divided into two air flows which enter the air exhaust channel 215 through the first area 51 and the second area 52, respectively, which is beneficial to avoid blockage of the filter assembly 22 caused by a high impact of debris on the same position of the filter assembly 22.

Referring to FIGS. 1, 2, 3 and 11 , the embodiments of the disclosure further provide a cleaning robot system 1000, the cleaning robot system 1000 includes the cleaning robot 100 described above, and a cleaning base station 200, the cleaning base station 200 is configured for performing at least one maintenance on the cleaning robot 100, and the at least one maintenance includes recycling garbage in the debris bin assembly 20.

The cleaning base station 200 is configured for performing at least one maintenance on the cleaning robot 100, and the at least one maintenance includes recycling garbage in the debris bin assembly 20.

The cleaning robot 100 is autonomously navigated to the cleaning base station 200, so that the cleaning robot 100 is docked with the cleaning base station 200, and the debris evacuation structure 218 of the cleaning robot 100 is docked with and communicates with the debris collecting opening 120 of the cleaning base station 200, so that the cleaning base station 200 sucks the garbage in the debris bin assembly 20 through the debris collecting opening 120 and the debris evacuation structure 218, thus realizing a recycling of the garbage in the cleaning robot 100 to the cleaning base station 200.

The cleaning base station 200 is provided with the debris collecting opening 120, the debris collecting opening120 is configured for docking with the debris evacuation structure 218 of the debris bin housing 21, and the cleaning base station 200 sucks the garbage in the inner cavity 214 through the debris collecting opneing120 and the debris evacuation structure 218.

The cleaning base station 200 includes a base station body 160, a debris collecting container 300 and a suction device 150. The base station body 160 is provided with a debris collecting cavity, a debris collecting opening 120, a debris inlet channel 130 and an air exhaust channel 140. The debris collecting opening 120 is configured for docking the debris evacuation structure 218 of the cleaning robot 100. One end of the debris inlet channel 130 communicates with the debris collecting opening 120, and the other end communicates with the debris collecting cavity. One end of the air exhaust channel 140 communicates with the debris collecting cavity, and the other end communicates with atmosphere. The debris collecting container 300 is detachably connected with the debris collecting cavity of the base station body, and the debris collecting container 300 is mounted in the debris collecting cavity and is communicated with the debris inlet channel 130 and the air exhaust channel 140. The suction device 150 is fixed on the base station body, the suction device 150 is configured to drive air to flow, the suction device 150 pumps out air in the debris collecting container 300 and the debris inlet channel 130 through the air exhaust channel 140 to generate a negative pressure in the debris collecting container 300 and the debris inlet channel 130, so as to suck the garbage in the debris bin assembly 20 into the debris collecting container 300 under an action of negative pressure. The debris collecting container 300 can be a debris bag, a debris bin or a debris tank.

Finally, it is to be noted that the above embodiments serve only to illustrate the technical solutions of the disclosure and not to limit the same; under the idea of the disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, there are many other variations of different aspects of the disclosure as described above, which are not provided in details for brevity; although the disclosure has been described in detail with reference to embodiments, it will be understood by those of ordinary skill in the art that the technical solutions described in the embodiments can still be modified, or part of the technical features can be equivalently replaced; and the modification or replacement does not make the essence of the corresponding technical solutions deviate from the scope of the technical solution of each embodiment of the disclosure. 

What is claimed is:
 1. A debris bin assembly, applied to a cleaning robot, wherein the debris bin assembly comprises a debris bin housing, a filter assembly, and a flow guide plate, wherein the debris bin housing comprises a top portion, a bottom portion disposed opposite to the top portion, and a side housing surrounding the top portion and the bottom portion, the top portion, the bottom portion and the side housing are enclosed to form an inner cavity, the top portion of the debris bin housing is provided with an air exhaust channel communicating with the inner cavity and an air outlet communicating with the air exhaust channel, the side housing is provided with an air inlet communicating with the inner cavity, the air inlet inclines towards a side where the top portion is located, the filter assembly is disposed in the air exhaust channel of the top portion, the flow guide plate is located in the inner cavity and is disposed opposite to the air inlet, and the flow guide plate extends from the top portion to the bottom portion and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet.
 2. The debris bin assembly as claimed in claim 1, wherein a side, close to the bottom portion, of the top portion forms an air inlet side of the air exhaust channel, and the flow guide plate is disposed on a surface of the air inlet side in a protruding manner, and the flow guide plate laterally guides air flow entering from the air inlet, so that the air flow flushes the surface of the air inlet side along a preset direction.
 3. The debris bin assembly as claimed in claim 2, wherein an area where the air inlet side is located is provided with a first edge and two opposite second edges, the first edge is a side edge, close to the air inlet, of the area where the air inlet side is located, the two second edges are connected with the first edge, and at least part of the flow guide plate spans between the two second edges.
 4. The debris bin assembly as claimed in claim 3, wherein the flow guide plate comprises a first side plate and a second side plate, the first side plate and the second side plate are connected to form a V-shaped plate structure, a junction of the first side plate and the second side plate is disposed close to the first edge, the first side plate is disposed crosswise to one of the two second edges, and the second side plate is disposed crosswise to the other of the two second edges.
 5. The debris bin assembly as claimed in claim 3, wherein the flow guide plate comprises an inclined flow guide plate, and at least part of the inclined flow guide plate spans between the two second edges, and the inclined flow guide plate is inclined relative to the first edge.
 6. The debris bin assembly as claimed in claim 2, wherein the flow guide plate comprises a first side plate and a second side plate connected with the first side plate, a junction of the first side plate and the second side plate is provided with a diversion part, the diversion part protrudes toward a direction of the air inlet, the diversion part is configured to divert the air flow entering from the air inlet, so that the air flow flows along the first side plate and the second side plate, respectively.
 7. The debris bin assembly as claimed in claim 6, wherein the side housing is provided with a debris evacuation structure opposite to the air inlet, and the air inlet, the diversion part and the debris evacuation structure are sequentially arranged at a middle position of the debris bin assembly along a front-rear direction of the debris bin assembly.
 8. The debris bin assembly as claimed in claim 7, wherein a center line of the air inlet, a center line of the diversion part and a center line of the debris evacuation structure are located in a same preset plane, the first side plate is disposed at a first included angle with respect to the preset plane, and the second side plate is disposed at a second included angle with respect to the preset plane, wherein the first included angle is equal to the second included angle.
 9. The debris bin assembly as claimed in claim 7, wherein the side housing is provided with a first side wall and a second side wall disposed opposite to the first side wall, and two opposite guide side walls, the air inlet is disposed on the first side wall, the debris evacuation structure is disposed on the second side wall, the two guide side walls are connected between the first side wall and the second side wall, respectively, the two guide side walls are configured to guide air flow to the debris evacuation structure, and the first side plate and the second side plate are connected with the two guide side walls, respectively.
 10. The debris bin assembly as claimed in claim 7, wherein a distance between the two guide side walls is narrowed approaching the debris evacuation structure.
 11. The debris bin assembly as claimed in claim 7, wherein a side, close to the top portion, of the bottom portion is provided with an upper surface, the upper surface is connected between the debris evacuation structure and the air inlet, the upper surface is recessed away from the top portion to form a recessed space, and the recessed space forms a part of the inner cavity.
 12. The debris bin assembly as claimed in claim 11, wherein, a portion, close to the debris evacuation structure, of the upper surface is arched toward the top portion, and a portion, close to the air inlet, of the upper surface is arched toward the top portion.
 13. The debris bin assembly as claimed in claim 2, wherein the flow guide plate divides an area where the air inlet side is located into a first area and a second area, the first area is located on a side, close to the air inlet, of the flow guide plate, the second area is located on a side, away from the air inlet, of the flow guide plate, when the air outlet is subjected to a suction negative pressure, at least part of the air flow entering from the air inlet enters the air exhaust channel through the first area, and at least part of the air flow entering from the air inlet bypasses the flow guide plate and enters the air exhaust channel through the second area.
 14. A cleaning robot, comprising a robot body and the debris bin assembly as claimed in claim 1, and the debris bin assembly is detachably mounted on the robot body.
 15. The cleaning robot as claimed in claim 14, wherein a side, close to the bottom portion, of the top portion forms an air inlet side of the air exhaust channel, and the flow guide plate is disposed on a surface of the air inlet side in a protruding manner, and the flow guide plate laterally guides air flow entering from the air inlet, so that the air flow flushes the surface of the air inlet side along a preset direction.
 16. The cleaning robot as claimed in claim 15, wherein an area where the air inlet side is located is provided with a first edge and two opposite second edges, the first edge is a side edge, close to the air inlet, of the area where the air inlet side is located, the two second edges are connected with the first edge, and at least part of the flow guide plate spans between the two second edges.
 17. The cleaning robot as claimed in claim 16, wherein the flow guide plate comprises a first side plate and a second side plate, the first side plate and the second side plate are connected to form a V-shaped plate structure, a junction of the first side plate and the second side plate is disposed close to the first edge, the first side plate is disposed crosswise to one of the two second edges, and the second side plate is disposed crosswise to the other of the two second edges.
 18. The cleaning robot as claimed in claim 16, wherein the flow guide plate comprises an inclined flow guide plate, and at least part of the inclined flow guide plate spans between the two second edges, and the inclined flow guide plate is inclined relative to the first edge.
 19. The cleaning robot as claimed in claim 15, wherein the flow guide plate comprises a first side plate and a second side plate connected with the first side plate, a junction of the first side plate and the second side plate is provided with a diversion part, the diversion part protrudes toward a direction of the air inlet, the diversion part is configured to divert the air flow entering from the air inlet, so that the air flow flows along the first side plate and the second side plate, respectively.
 20. A cleaning robot system, comprising the cleaning robot as claimed in claim 14, and a cleaning base station, the cleaning base station is configured for performing at least one maintenance on the cleaning robot, and the at least one maintenance comprises recycling garbage in the debris bin assembly. 